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two hosts, A and B, are separated by 20,000 kilometers and are connected by a link of R=2 Mbps, and there are 4 routers between A and B. Suppose the propagation speed over the link is 2.5*108 meters/sec, average queueing time is 2ms,
processing 3ms on each router. Consider sending a file of 800,000 bits from Host A to Host B. Suppose the file is sent continuously as one large message. How much time for B to receive the whole file after A sent out the first bit?( A little bit explanations please, formulas etc)
Describe CDMA (code division multiple access), that is used in GPS and Qualcomm satellite phone network, also other communication standards.
Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on earth. What is the propagation delay of the link?
technical design of network services - You are a consultant being brought in by XUMUC to assist with its merger with another company
Describe the mechanism used for signaling between client and server to indicate that persistent connection is being closed. Can client, server, or both signal close of connection?
After choosing unused address from the range given in d for the IP address for a device on the LAN, what would the IP subnet mask and gateway be set to? Explain why these settings would be used.
Then the sender learns of acknowledgment of 0,1,2,5. What frames are in sender's window range just after this event?
several views to Cybersecurity Architecture. Describe the Business View and the Architect's View through a business case example.
An organization has a class C network 200.1.1 and wishes to form subnets for four departments, with hosts as follows:
Determine the IP addresses of www.google.com and www.yahoo.com. Modify hosts file to map www.google.com to yahoo's IP address and try to do google search. Remove modification to host file and repeat.
Determine the smallest size subnet which can be utilized to fulfil this requirement? _______. Determine the maximum number of IP addresses which can be assigned in this size subnet?
Design an algorithm that, under the standard set of assumptions (bidirectional links, total reliability, connectivity), determines maximum value in the ring assuming that there is a unique initiator.
Create a spreadsheet analyzing cost and savings of replacing the LAN with wi-fi network for organization of 450 people.
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